4
MEASURING PROCEDURE
1)Push the " Power Button " ( 3-2, Fig. 1 ) to switch the
instrument on.
2)Select the desired measuring unit by pressing the " Lux/Fc
Button " ( 3-5, Fig. 1 ). The display will indicate the
selected unit of " Lux " or " Ft-cd ".
3)
Select the max. range by using the " Range Button " ( 3-6,
Fig
. 1 ).
a. If the main display shows " - - - - ", it indicates
overload condition, select the next higher range.
b. If the main display shows "_ _ _ _ ", it indicates
out-of-range, select the next lower range.
c. As intend to get more accuracy reading, try to select
the range that it have the high resolution
4) Position the " Light Sensor " ( 3-12, Fig. 1 ) directly
under the light source.
5) Zero adjustment
a. Cover the " Light Sensor " ( 3-12, Fig, 1 ) using the
" Sensor Cover " ( 3-14, Fig. 1 ).
b
. Set to 40.00 Lux range.
c. Pushing the " Zero Button " ( 3-7, Fig. 1 ), LCD will reach
to zero values.
d. Upon completion, remove the sensor cover.
Note :
For precision measurement, only the 40.00 Lux
range need to make Zero Adjustment.
7
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